CN2810117Y - Electromagnetic shielding liner and electromagnetic shielding device - Google Patents
Electromagnetic shielding liner and electromagnetic shielding device Download PDFInfo
- Publication number
- CN2810117Y CN2810117Y CN 200520113514 CN200520113514U CN2810117Y CN 2810117 Y CN2810117 Y CN 2810117Y CN 200520113514 CN200520113514 CN 200520113514 CN 200520113514 U CN200520113514 U CN 200520113514U CN 2810117 Y CN2810117 Y CN 2810117Y
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- electromagnetic shielding
- liner
- shielding liner
- electromagnetic
- mounting bar
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Abstract
The utility model discloses an electromagnetic shielding liner and an electromagnetic shielding device which comprises the electromagnetic shielding liner. The electromagnetic shielding liner is formed by the winding of a strip-shaped or linear elastic body, wherein the cross section of the elastic body can be wound into various shapes according to actual requirements. The electromagnetic shielding device comprises the electromagnetic shielding liner and a mounting strip, wherein the electromagnetic shielding liner is formed by the winding of a strip-shaped or linear elastic body; the electromagnetic shielding liner is sheathed outside the mounting strip, and the mounting strip is connected to the unit mounting face of shielded equipment. The electromagnetic shielding liner and the electromagnetic shielding device of the utility model have the advantages of good shielding effect, simple processing technology and low cost.
Description
Technical field
The utility model relates to the electromagnetic shielding field, the electromagnetic screen that relates in particular to a kind of electromagnetic shielding liner and comprise this electromagnetic shielding liner.
Background technology
Electronic equipment generally is made of some unit, but be difficult to reach seamless contact between the adjacent cells, and then formation certain interval, the existence in those gaps makes entire equipment can not become a sealed whole, cause this electronic equipment to be subjected to the interference of extraneous signal easily, and self electromagnetic signal is radiate other equipment of interference.For this reason, electronic equipment can be taked shielding measure usually, and conventional method is at the gap location of adjacent cells pack into electromagnetic shielding liner or electromagnetic screen.See also Fig. 1, it is a kind of electromagnetic shielding liner common in the prior art.Electromagnetic shielding liner is a metal spring leaf 14.Described metal spring leaf 14 is made up of a plurality of reeds unit.Adjacent single reed has certain spacing L3 between the unit.
Please in conjunction with reference Fig. 2, it is the STRUCTURE DECOMPOSITION exemplary plot that comprises a kind of electromagnetic screen of electromagnetic shielding liner shown in Figure 1.This electromagnetic screen comprises above-mentioned metal spring leaf 14 and some protruding bridges 22.Those protruding bridges 22 are fixedly installed on the unit installed surface 23 of equipment, such as adopting the stamping-out technology, determine the protruding bridge 22 of a row in unit installed surface 23 upper punches, and metal spring leaf 14 is socketed in outside those protruding bridges 22.Each protruding bridge 22 is bridge shape, be that both sides have the slit, metal spring leaf 14 dual-sides are the shape that curves inwardly simultaneously, therefore, when metal spring leaf 14 when protruding bridge 22 1 ends insert, metal spring leaf 14 aduncate dual-sides just are stuck in the slit of some protruding bridges 22 both sides, and then metal spring leaf 14 is fixed on the unit of equipment installed surface 23 by protruding bridge 22.
According to the electromagnetic wave propagation principle, when electromagnetic wavelength much larger than the slit or during the size of hole, the electromagnetic wave of leakage is just fewer, shield effectiveness is good.Therefore when making shielding gasket, topmost purpose is exactly to dwindle the shielding dot spacing L1 of shield (being the maximum spacing of the actual adjacent contact points that matches), makes it much smaller than electromagnetic wavelength.But the shielding dot spacing L1 of metal spring leaf 14 is subjected to the influence of the spacing L3 of the width L2 of single reed unit and adjacent single reed unit.Will reduce the width L2 of single reed unit and the spacing L3 between the adjacent single reed unit for reducing to shield dot spacing L1.
But, will produce following problem like this:, can increase the complexity of processing technology thus, and then cause the raising of production cost if the width L2 of single reed unit reduces; If the spacing L3 between the adjacent single reed unit dwindles, same, can increase the processing technology difficulty, raise the cost.Therefore the shielding gasket of this structure is if accomplish to have less shielding dot spacing, and shield effectiveness is better, just needs that difficulty is big, the higher processing technology of complexity, and cost can be very high.
The utility model content
The purpose of this utility model is to provide a kind of electromagnetic shielding liner, and the electromagnetic screen that comprises this electromagnetic shielding liner, to solve the technical problem that effectiveness is not good and production cost is high that exists in the prior art.
The utility model discloses a kind of electromagnetic shielding liner, described electromagnetic shielding liner is made up of the elastomer winding that is strip or wire.
The bottom surface of described electromagnetic shielding liner is a plane, and elastomer is a spring wire, and the cross section of electromagnetic shielding liner is a semicircle or arc.
The utility model discloses a kind of electromagnetic screen, comprise mounting bar and electromagnetic shielding liner, described electromagnetic shielding liner is made up of the elastomer winding that is strip or wire, be provided with pitch between the elastomer after the coiling, described electromagnetic shielding liner is set in the outside of described mounting bar, and described mounting bar is connected in the unit installed surface of equipment.
On the unit installed surface of equipment some salient points are set, mounting bar is provided with corresponding installing hole, and installing hole is riveted on corresponding salient point.
Compared with prior art, the utlity model has following advantage:
The disclosed electromagnetic shielding liner of the utility model, be made up of the elastomer winding that is strip or wire, the elastomer diameter that is strip or wire is little, and the pitch of winding is little, thereby adjacent contact dot spacing (shielding dot spacing) just can be very little, and shield effectiveness is corresponding better.Electromagnetic shielding liner processing technology with this structure is much simpler than the processing technology of prior art, and is therefore with low cost.
Further, the shape of cross section of electromagnetic shielding liner can be other shapes semicircle or arc or according to actual needs, thereby it is strong to use flexibility.
The disclosed electromagnetic screen of the utility model is made up of the elastomer winding that is strip or wire, thereby shield effectiveness is good, and processing technology is simple, and is with low cost.Simultaneously because mounting bar can be processed very thinly, be installed in after electromagnetic shielding liner and its socket on the unit installed surface of equipment, the compressible amount of this electromagnetic shielding liner in the equipment slit can be bigger, and then help the good contact of the device of both sides, equipment slit, thereby guarantee good shield effectiveness.
Description of drawings
Fig. 1 is a kind of electromagnetic shielding liner exemplary plot common in the prior art;
Fig. 2 is the STRUCTURE DECOMPOSITION exemplary plot that comprises the electromagnetic screen of electromagnetic shielding liner shown in Figure 1;
Fig. 3 is a kind of electromagnetic shielding liner exemplary plot of the present utility model;
Fig. 4 is the STRUCTURE DECOMPOSITION exemplary plot that comprises the electromagnetic screen of electromagnetic shielding liner shown in Figure 3;
Fig. 5 is for using a kind of electronic equipment exemplary plot of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 5 is for using a kind of device examples figure of the present utility model.Introduce the principle of using electromagnetic screen in conjunction with this concrete equipment 51, so that the clearer understanding of those skilled in the art technical scheme of the present invention.
The unit of this equipment 51 is to plug veneer, and with two wherein adjacent veneers, last veneer 52 and following veneer 53 are illustrated for example.Every veneer all has many electronic devices and components, when work, there is the signal of certain frequency to pass through, will produce corresponding electromagnetic wave, in order to make few the letting out of trying one's best of electromagnetic waves in this equipment 51, just need make equipment not have slit or hole, otherwise electromagnetic wave will blaze abroad from these slits or hole as the jar of sealing as far as possible.
And in the middle of practical application, can not accomplish between the adjacent veneer that some slits do not have, because some slits both be not unfavorable for the plug of these veneers, simultaneously also be difficult to reach this craft precision, electromagnetic screen so the way that solves is normally packed among the slit L4 between last veneer 52 and following veneer 53.But the electromagnetic shielding liner in the electromagnetic screen of load facility can not be conduct electricity fully continuous, the contact point of it and last veneer 52 is not fully continuously, so just produced the adjacent contact dot spacing, be the shielding dot spacing again, according to principle of electromagnetic shield-ing, the shielding dot spacing is more little, and shield effectiveness is best.
Fig. 3 is the exemplary plot of a kind of electromagnetic shielding liner of the present utility model.This electromagnetic shielding liner 31 is made up of a spring wire winding with conductivity.The diameter of spring wire is little, its spring pitch L5 can be got very short very easily by winding, shielding dot spacing when electromagnetic shielding liner 31 reality are used thus (that spring pitch of maximum in each spring pitch) just can be very little, according to the principle of electromagnetic shield-ing that the preceding paragraph is analyzed, the electromagnetic shielding shield effectiveness will be better.
The bottom surface of this electromagnetic shielding liner 31 is a plane, and this planar section is fixed on the steadiness that can guarantee the electromagnetic shielding liner mechanical location on the unit installed surface of equipment.The cross section of this electromagnetic shielding liner 31 is semicircle, semicircular height is greater than the height of the sealed slit L4 of needs, so that this shielding gasket 31 has good compressible amount when using in sealed slit L4, decrement helps the device good contact of electromagnetic shielding liner 31 therewith of both sides, slit greatly, add the good springiness of spring wire itself, and then improved the effect of electromagnetic shielding.The technology of winding spring wire is simple, and the cost of producing this electromagnetic shielding liner 31 can be very low.This is the preferred specific embodiment of the disclosed electromagnetic shielding liner of the utility model.
In addition, electromagnetic shielding liner can also be made up of other elastomer windings that are wire or strip.The cross section of electromagnetic shielding liner also can be other shapes arc or according to actual needs, therefore, should use and has good flexibility, applied widely.
The disclosed electromagnetic shielding liner of the utility model is applicable to that multiple needs take the equipment of electromagnetic shielding measure, also can be combined into multiple electromagnetic screen with other accessories.
Fig. 4 is the STRUCTURE DECOMPOSITION exemplary plot that comprises the electromagnetic screen of electromagnetic shielding liner shown in Figure 3.This electromagnetic screen comprises mounting bar 42 and electromagnetic shielding liner 31, and electromagnetic shielding liner 31 is made up of the spring wire winding with conductivity that is wire, is provided with pitch L5 between the spring wire after the coiling.
The bottom surface of electromagnetic shielding liner 31 is the plane, and the cross section of electromagnetic shielding liner 31 is semicircle, and semicircular height is greater than the sealed slit L4 height of needs.Mounting bar 42 is a sheet, and its width is less than the width of electromagnetic shielding liner 31 bottom surfaces.Electromagnetic shielding liner 31 is set in the outside of mounting bar 42.
The unit installed surface 43 of equipment is provided with some salient points, and mounting bar is provided with the installing hole corresponding with these salient points, and the position of installing hole is on the main shaft of mounting bar, and installing hole is riveted on corresponding salient point.Also some salient points can be set on mounting bar, corresponding with it installing hole is set on the unit installed surface of equipment, then salient point is riveted on corresponding installing hole.Can also adopt the screw interconnection technique mounting bar to be installed in the unit installed surface of equipment.
Because it is very thin that mounting bar 42 can be processed, its thickness is compared much smaller with the height (the semicircular height in cross section) of spring wire, thereby be socketed in mounting bars 42 in the electromagnetic shielding liner 31 occupy in the shielding gasket 31 vertical space seldom, and then the decrement of electromagnetic shielding liner 31 in sealed slit L4 just can be very big, help good contact of this shielding gasket 31 and sealed L4 both sides, slit device, guaranteed the effect of electromagnetic shielding.
Below simply introduce the fitting operation of electromagnetic screen.During installation, at first the end of electromagnetic shielding liner 31 from mounting bar 42 penetrated, make electromagnetic shielding liner 31 be set in the outside of mounting bar, the unit installed surface 43 of equipment is provided with some salient points, mounting bar is provided with corresponding installing hole, the installing hole that is with on the mounting bar of electromagnetic shielding liner is riveted on the corresponding salient point, and then electromagnetic shielding liner is mounted the unit installed surface 43 that bar is fixed on equipment.By above operation, whole electromagnetic screen is just by among the slit of the needs sealing of being packed into securely.This is the preferred specific embodiment of the disclosed electromagnetic screen of the utility model.
The utility model also provides the embodiment of another kind of electromagnetic screen, and this electromagnetic screen comprises mounting bar and electromagnetic shielding liner.This electromagnetic shielding liner is made up of the spring leaf winding that is strip, is provided with pitch between the spring leaf after the coiling, and what pitch can be by winding is very little, and the cross section of this electromagnetic shielding liner is semicircle.Mounting bar is a sheet, and its width is less than the width of electromagnetic shielding liner bottom surface.Described electromagnetic shielding liner is set in the outside of described mounting bar, and the unit installed surface of equipment is provided with some salient points, and mounting bar is provided with corresponding installing hole, and the position of installing hole is on the main shaft of mounting bar, and installing hole is riveted on corresponding salient point.The cross section of electromagnetic shielding liner can also be other shapes arc or according to actual needs.
Above-mentioned disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, for example, the bottom surface of electromagnetic shielding liner can not be the plane also, as long as can fix.Mounting bar is connected with the unit installed surface of equipment in the electromagnetic screen can several different methods, such as bonding or crimping etc.Any those skilled in the art can think variation all should drop in the protection range of the present utility model.
Claims (9)
1, a kind of electromagnetic shielding liner is characterized in that, described electromagnetic shielding liner is made up of the elastomer winding that is strip or wire.
2, electromagnetic shielding liner as claimed in claim 1 is characterized in that, the bottom surface of described electromagnetic shielding liner is a plane.
3, electromagnetic shielding liner as claimed in claim 1 or 2 is characterized in that, described elastomer is a spring wire.
4, electromagnetic shielding liner as claimed in claim 1 or 2 is characterized in that, the cross section of described electromagnetic shielding liner is a semicircle or arc.
5, a kind of electromagnetic screen, it is characterized in that, comprise: mounting bar and electromagnetic shielding liner, described electromagnetic shielding liner is made up of the elastomer winding that is strip or wire, described electromagnetic shielding liner is set in the outside of described mounting bar, and described mounting bar is connected in the unit installed surface of conductively-closed equipment.
6, electromagnetic screen as claimed in claim 5 is characterized in that, the bottom surface of described electromagnetic shielding liner is a plane.
As claim 5 or 6 described electromagnetic screens, it is characterized in that 7, described elastomer is a spring wire.
As claim 5 or 6 described electromagnetic screens, it is characterized in that 8, the cross section of described electromagnetic shielding liner is a semicircle or arc.
9, electromagnetic screen as claimed in claim 5 is characterized in that, on the unit installed surface of conductively-closed equipment some salient points is set, and corresponding installing hole is set on the mounting bar, and installing hole is riveted on corresponding salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113514 CN2810117Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding liner and electromagnetic shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113514 CN2810117Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding liner and electromagnetic shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810117Y true CN2810117Y (en) | 2006-08-23 |
Family
ID=36926299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113514 Expired - Lifetime CN2810117Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding liner and electromagnetic shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2810117Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232797B (en) * | 2007-01-23 | 2011-08-24 | 株式会社优伯 | Electromagnetic shielding gasket and electronic device provided therewith |
-
2005
- 2005-07-13 CN CN 200520113514 patent/CN2810117Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232797B (en) * | 2007-01-23 | 2011-08-24 | 株式会社优伯 | Electromagnetic shielding gasket and electronic device provided therewith |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU HUASAN COMMUNICATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: HANGZHOU HUAWEI 3COM TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 310053, Hangzhou hi tech Industrial Development Zone, Zhejiang hi tech Industrial Park, No. six and No. 310 HUAWEI Hangzhou production base Patentee after: Huasan Communication Technology Co., Ltd. Address before: 310053, Hangzhou hi tech Industrial Development Zone, Zhejiang hi tech Industrial Park, six and road HUAWEI 3Com headquarters Patentee before: Huawei Sankang Technology Co., Ltd., Hangzhou |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150713 Granted publication date: 20060823 |
|
| EXPY | Termination of patent right or utility model |